The
Wasco County gets its name from the Wascopam Indian Tribe. At the time of its creation in 1854,
Wasco County was the largest county ever formed in the United States. It stretched from the Cascade Mountains to the Rocky Mountains and from the California border to the Washington border. Its immense size was such that 17 other counties in Eastern Oregon were later formed from the
Wasco County. The City of The Dalles became the county seat at the time the county was created. It remains there today with the beautiful historic courthouse that was built in 1914.
Information from the
Oregon Secretary of State Archives Division and the
Oregon Blue Book.
For contact information and courthouse location, please see the
Contact Us and
Courthouse Location pages.